Triplicate manifolding book



May 21, 1935. A. R. LAWSON TRIPLICATE MANIFOLDING BOOK Filed April 19, 1950 Patented May 21, 1935 UNITED STATE This invention PATENT OFFICE TRIPLICATE MANIFOLDING BOOK Hamilton, Ontario, Canada,

signments, to American Limited, Toronto, On-

tario, Canada, a corporation of Canada Application April 19, 1930, Serial No. 445,610 4 Claims. (Cl. 282-22) relates to that type of manifolding book in which three copies are to be made at one writing. The simplest book of this type at present use d is the so called automatic in which the backs of the upper two of three sheets are carbonized. This is open to the gr ave objection that the sheets are dirty to handle and cannot be wrapped up with soilable free from this objection,

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goods. Another uses two fixed carbon sheets which have to be handled each time the book is used. This latter book is thus complicated, troublesome to use and is wasteful of time. Further, as the same carbon sheets are repeatedly used, the last copies made are apt to be illegible.

My object therefore is will be as convenient to use as ing-book which the automatic,

to produce a manifoldwhich will produce as clean sheets or checks as the type using separate carbon sheets and which will possess the further advantage that two or more of the sheets of a set or unit may b tion retained and tween them.

a plurality e removed with their registraa carbon sheet in position beto a suitable back original sheet integral therewith and normally folded in parallel thereto,

a duplicate interposed between triplicate, and a the original and carbon sheet folded to lie between the original and duplicate and the duplicate and triplicate, the carbon sheet being carbonized alternately on opposite sides to present carbonized surfaces to the upper faces only of underlying sheets.

Each unit is connected to 0th the duplicate and triplicate by providing b the back, preferably gumming to the end of the triplicate sheet adjacent the stub.

The invention is hereinafter more specifically described and is illustrate drawingfin which :1 in the accompanying Fig. l is a perspective view of one unit of the book comprising an original sheet, a duplicate sheet,-a triplicate sheet, and a carbon sheet gummed at one Fig. 2 a side end to the triplicate; elevation of a unit, showing the carbon sheet provided with a stub whereby it may be bound in the book;

Fig. 3 a similar view showing the duplicate,

triplicate and carbon sheets united to a common stub;

Fig. 4 a perspec tive view of a book constructed in accordance with my invention as it appears when ready for the making of anentry on an original sheet; and

Fig.v 5 a perspective view and triplicate sheet remov sheet still in place. 7

In the drawing like numerals of reference indicate corresponding parts in the different figures.

Referring particularly to Fig. 1 of the drawing, it will be seen that each manifolding unit com- 10 prises a triplicate sheet I provided with a stub 2, an original sheet 4 united to the free end of the triplicate sheet, a duplicate sheet 5 provided with the stub 6 and a carbon sheet 3 which is folded parallel to the line of juncture of the original and triplicate sheets to lie between the original' and duplicate sheets and between the duplicate and triplicate. The end of the carbon sheet adjacent the stubs is gummed to the face of the triplicate sheet. By means of the stubs 2 and 6 the units are bound together to form a book as shown in Fig. 4 of the drawing.

The book is provided with a cover which includes at least a back I and a portion 8 bound to the stub of the book.

It will also usually include a front 9 and stop sheet l0 connected, preferably integrally, with the free end of the back 1 so that it may be used as hereinafter described.

The originals; duplicates and triplicates may be printed, as usual, according to the requirements of the purchaser, and may be numbered consecutively either from the front to back or the back to the front of the book. The stop sheet also acts as arecord sheet on which a summary of sales may be entered. Perforations or other lines 'of weakness will usually be employed to facilitate the separation of the originals from the triplicates and the latter from their stubs.

In a book constructed as in Figs. 1 and 4 of the drawing the duplicates are usually left in the book and the triplicates and orlginalsremoved, the carbon sheets remaining in position and attached to the triplicate sheets.

For some purposes it may not be essential to have the carbon sheets attached to the triplicates, in which case each carbon sheet may be formed with a. stub Ii whereby it may be bound in the book and may or may not be torn 011 with the original and triplicate. I

If it is'desired to remove each unit as a whole the, construction shown in Fig. 3 may be employed in which a single stub i2 is provided for binding into the bookto which the duplicates, triplicates and carbon sheets ar all connected.

showing an original ed with the carbon 5 One connection will usually be ma i-a1, the others necessarily by gumming. With this construction each unit is removable as a whole and in the folded condition.

As a separate carbon sheet is provided for each manifolding unit I "find it desirable in order to avoid making the book too-bulky and expensive to use for the carbon sheets a very thin cheap paper having a very light coating of carbon applied thereto. To further keep'down expense, and to make for cleanliness in handling each carbon sheet is carbonized alternately on opposite sides to present carbonized surfaces to the upper faces only of the underlying sheets when a unit is being used for entries.

Working from the front the method of use of this bookis as follows. With the parts in the 'position shown in Fig. 2 the first original sheet is exposed. The entries aremade on the original sheet and transferred to the duplicate and triplicate. The original and carbon sheet are then turned back out of the book by grasping the free margin of the original and the underlying end of the carbon sheet which is left clean of carbon as shown so that the fingers are not soiled in this operation. The triplicate can then be readily separated from its stub by a suitable sideways pull on the original, the separated parts then appearing as in Fig. 5. The leaves thus separated from the book can be refolded with the carbon sheet still retained in place and the writing on the original and copies still in regis'ter. Further inscriptions, check marks or signatures may thus be added on the original as' needed and duplicated. If desired a unit after use may be turned back over the cover, while a second unit is being used, and is thus subsequently conveniently available if further entries are to be made thereon. P

In working the book from the back all the units, except the one to be used, are thrown back over the cover and the stop sheet positioned under the one to be used. After use the original, triplicate and carbon sheet are removed as hereinbefore described and the duplicate sheet positioned under the stop sheet. 7

If the unit used is to be kept in the book for any purpose it ispositioned under the stop sheet ready to be brought up *over the same if further entries are to be made. 4

This book, it will be seen, may be used for any purpose where two copies of an original are required.

It is also particularly adapted for use where a sales check is sent out with goods and the merchant is desirous of having a receipt for delivery appear on both sales checks.

For-such purposes the original and triplicate sheets with the carbon sheet between are sent out with the goods. To the original the recipient afllxes hissignature together with any notes or comments, if any, all of which is reproduced on the triplicate. The original is then torn off, leavingthe carbon attached to the triplicate. '"One sales check is left with the consignee and the other taken back to the consignor. At any time after it has served its purpose the carbon sheet may be torn off and thrown away.

This form of triplicate book, it will be. seen, is inexpensive to manufacture, as the printing, numbering, folding, inserting and the pasting of the carbon sheets may be done expeditiously by automatic machinery. The carbon sheets being made as described of thin, cheap, lightly coated paper, the book is neither too bulky nor too expensive as compared with the present triplicate books. The book is also clean to handle, as it is never necessary to touch the carbon surfaces, and when the carbon sheet is folded only non-carbonized surfaces are exposed. As none of the record sheets are carbonized on the back, these surfaces are available for advertisements.

What I claim as my invention is:

1. A manifolding book comprising a plurality of manifolding units each comprising a sheet nore mally folded to provide two relatively superposed record leaves, a carbon sheet folded parallel to the fold in the record sheet to provide two carbon leaves between said record leaves and having a clean, free margin underlying the free margin of the folded record sheet, and a third record sheet disposed between said carbon leaves, one of said recordsheets being bound in the book and the other record sheet being detachable with the two carbon leaves, as a unit, from the book, independently of said bound sheet.

2. A manifolding book comprising a plurality of manifolding units each comprising a sheet normally folded to provide two relatively superposed record leaves, a carbon sheet folded parallel to the fold in the record sheet to provide two carbon leaves between said record-leaves, and a third record sheet disposed between said carbon leaves, one of said record sheets being bound in-the book, and the other record sheet and the carbon sheet being secured to said bound sheet for detachment therewith as a unit from the book.

3. A manifolding book comprising a plurality of manifolding units each comprising a sheet normally folded tooprovide two relatively superposed record leaves, a carbon sheet folded to provide two carbon leaves between said record leaves, and a third record sheet disposed between said carbon leaves, each. of said record sheets being bound in the book, said carbon sheet being secured to one of said record leaves so as to be detachable therewith as a unit from the book.

4. A manifolding book comprising one or more manifolding units, each unit comprising a record sheet normally folded to provide two relatively superposed record leaves, a carbon sheet folded parallel to the fold in the record sheet to provide two carbon leaves between said recor'd leaves, and a third record sheet interposed between said carbon leaves and having"a detachable stub bound in the book, said folded record sheet and said carbon sheet attached to said third sheet outside said stub.

ALBERT R. LAWSON. 

